Leslie Mark Greenbaum

Leslie Mark Greenbaum

New York attorney with a focus on Intellectual Property Law.
  • Intellectual Property, Patents, Trademarks
  • New York
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Leslie Mark Greenbaum has been an attorney with Gross Shuman P.C. since 1978. He concentrates his practice in the areas of copyright, trademark, entertainment, art and sports law, unfair competition and related litigation. He is admitted to practice in all State and Federal courts in the State of New York and to the United States Supreme Court.

For several Western New York arts and community organizations, Les serves as a member of the board and/or an advisor. He frequently lectures to professional and general audiences in his areas of concentration.

Practice Areas
    Intellectual Property
    Patent Appeals, Patent Litigation, Patent Prosecution
    Trademark Litigation, Trademark Registration
Video Conferencing
  • Zoom
  • Credit Cards Accepted
Jurisdictions Admitted to Practice
New York
New York State Office of Court Administration
ID Number: 1636968
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  • English: Spoken, Written
SUNY Buffalo Law School
J.D. (1973)
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State University of New York - College at Oneonta
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Professional Associations
New York State Bar  # 1636968
- Current
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Speaking Engagements
Ethical Considerations Under the New York Shield Act, CLE
Erie County Bar Association
Copyright Basics
Arts Services Initiative of WNY Series
"Intellectual Property Considerations in Estate Planning and Estate Administration"
Estate Analysts of Western New York
Websites & Blogs
Gross Shuman P.C. Website
Social Media
Contact & Map
Gross Shuman P.C.
465 Main Street
Suite 600
Buffalo, NY 14203
Telephone: (716) 854-4300
Monday: 8:30 AM - 5 PM
Tuesday: 8:30 AM - 5 PM
Wednesday: 8:30 AM - 5 PM
Thursday: 8:30 AM - 5 PM (Today)
Friday: 8:30 AM - 5 PM
Saturday: Closed
Sunday: Closed
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